摘要
TiFe储氢合金理论储氢量为1.86 wt.%,且分解压力适中,循环稳定性好,价格便宜且资源丰富,极适于大规模工业生产和应用,被认为是一种非常有前途的固态储氢材料。但传统的TiFe储氢合金存在着活化困难、有效储氢容量较低、抗杂质气体毒化能力很差等突出问题。针对上述TiFe基储氢合金的缺点,研究人员进行了大量的改性研究。笔者总结了基于机械形变方法的TiFe基储氢合金的研究进展,对比了采用高能球磨技术、冷轧技术、孔型轧制技术及高压扭转技术处理后的TiFe基储氢合金的储氢性能,并探讨了冷锻技术、等径角挤压技术及搅拌摩擦加工技术等潜在的可用于TiFe基储氢合金的储氢性能改善的机械形变方法。
The theoretical hydrogen storage capacity of TiFe hydrogen storage alloy is 1.86 wt.%.This alloy also shows many advantages including moderate decomposition pressure,good cycle stability,cheap price and abundant resources.In addition,TiFe alloy is very suitable for large-scale industrial production and application as a very promising solid-state hydrogen storage material.However,the traditional TiFe hydrogen storage alloy shows hard activation process,low effective hydrogen storage capacity and poor anti-poisoning ability.In response to the shortcomings of TiFe alloys,the researchers conducted a large number of modification studies.In this paper,the research progress of TiFe-based hydrogen storage alloy processed by mechanical deformation method was summarized.The properties of TiFe-based hydrogen storage alloy after ball milling(BM),cold rolling(CR),groove rolling(GR)and high pressure torsion(HPT)were compared.The other potential mechanical deformation methods that may be used to improve the hydrogen storage performance of TiFe-based hydrogen storage alloys including cold forging(CF),equal channel angular pressing(ECAP)and friction stir processing(FSP)were also discussed.Finally the direction of future research of TiFe alloy was prospected.
作者
吕朋
周兴盛
刘芝辰
Viney Dixit
何志平
谭海
LÜPeng;ZHOU Xing-sheng;LIU Zhi-chen;VINEY Dixit;HE Zhi-ping;TAN Hai(School of Chemical Biology and Materials Science, East China University of Technology, Nanchang 330013, China;School of Innovation and Entrepreneurship, East China University of Technology, Nanchang 330013, China;Department of Energy Science and Engineering, Indian Institute of Technology (Mumbai), Mumbai 400076, India)
出处
《东华理工大学学报（自然科学版）》
CAS
2021年第1期90-95,共6页
Journal of East China University of Technology(Natural Science)
基金
国家自然科学基金项目(61462004)
核技术应用教育部工程研究中心开放基金项目(HJSJYB2019-5)
江西省聚合物微纳制造与器件重点实验室开放基金项目(PMND201902)
东华理工大学实验技术项目(DHSY-2019-034)
东华理工大学博士启动基金项目(DHBK2019128)。
关键词
TiFe
储氢合金
机械形变
活化性能
储氢性能
TiFe
hydrogen storage alloy
mechanical deformation
activation
hydrogen storage performance
